| Most common failures | No# failures |
|---|
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Registration plate issues | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Front wheel spindle securing nut locking device insecure |2.3.5a| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Brake reaction bracket insecure |3.2.A1j| | 1 |
| Front Headlamp aim not tested (4.1.2 (b)) | 1 |
| Front Gradient brake test indicates a sticking brake |3.3.D1c| | 1 |
| Headlamp aim out of alignment | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Front wheel spindle loose |2.3.3a| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front wheel spindle loose |2.3.5a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Brake hose excessively deteriorated | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |